What is the probability that a card drawn at random from a deck of card is either a king card or a diamond card?

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A card is drawn at random from a deck of ordinary playing cards. What is probability that it is a face, a king or a diamond?

There are 52 possible outcomes Hence, 52 is the denominator of probability fraction. Can I say that there are 13 diamonds plus 3 kings that are not diamonds for a total of 16..?